Lamp-base extractor



o. '1. swANsoN.

LAMP BASE ExTRAcToR.

APPLICATION FILED OCT. 22| 1921.

Patented Apr. 25, 1922.

UNITED STATES PATENT OFFICE.

LAMP-BASE EXTBACTOR.

Specification of Letters Patent.

Patented Apr. 25, 1922.

Application illed October 2,2, 1921. Serial No. 509,537.

To all 'whom it may concern.'

Be it known that OLAF JOHAN SwANsoN, a citizen of the United States ofAmerica, residing at Chappaqua, in the county of Westchester and Stateof New York, has invented new and useful Improvements in Lamp-BaseExtractors, of which the following is a specification.

The object of the invention is to provide a simple and eicient means forextracting a broken lamp base or plug from the socket in which'it isfitted and which ordinarily resists removal, there being no ordinaryhousehold tools or utensils which are adapted for engaging such a deviceand effecting its disengagement from the socket with facility; andfurthermore to provide a tool for the purpose indicated which may beproduced at a relatively small cost and may be conveniently andeffectively used by the householder or consumer without any specialknowledge of mechanics or of the use of tools; and with this' object inview the invention consists in a construction and combination of partsof which a preferred embodiment is shown in the accompanying drawings;wherein Figure 1 is a perspective view of a plug or base extractorembodying the invention.

Figure 2 is a side view of the same arranged in operative relation withthe plug or base of a broken lamp.

The tool consists essentially of a shank 10 of pronged constructionhaving the arms 11 adapted for terminal insertion into the plug or baseof the lamp and for terminal en gagement with the inner surface of thewall of said plug or base. The inner or facing surfaces of the armsforming the prong are convergently disposed from their free ends towardtheir junction with the shank and adapted for arrangement and movementbetween the arms is a key 12, preferably of tapered form as shown sothat any desired portion of the length thereof may be disposed betweenthe arms to suit the diameter of the plug or base. By drawing the keytoward the closed end of the slot between the arms, or away from theplug or base, without inserting the extremities of the arms into theplug or base, said extremities may be forced tightly into contact andengagement with the inner surface of the plug or base so that by turningthe shank it may be accomplished by using the key as a lever, the plugor base may be unscrewed from the socket.

Preferably the key is fiexibly attached to the shank as by a cord orlike connection 13, of which the terminals may be engaged with suitableopenings 14 and 15 in the key and shank.

Having described the invention, what is claimed as new and useful is Atool for removing broken lamp plugs or bases having a pronged shank ofwhich the arms are adapted for insertion within the plug or base and areprovided with convergent facing surfaces, and a key for spreading thearms to cause engagement thereof with the wall of the plug or base, thekey being disposed transversely of the shank to form a handle by whichthe latter may be turned to unscrew the plug or base.

In testimony whereof he aixes his signature.

OLAF JOHAN SWANSON.

